Helium, hydrogen, and fuzz in plasma-facing materials
KD Hammond - Materials Research Express, 2017 - iopscience.iop.org
Tungsten, the primary material under consideration as the divertor material in magnetic-
confinement nuclear fusion reactors, has been known for the last decade to form'fuzz'—a …
confinement nuclear fusion reactors, has been known for the last decade to form'fuzz'—a …
Recent advances in modeling and simulation of the exposure and response of tungsten to fusion energy conditions
Under the anticipated operating conditions for demonstration magnetic fusion reactors
beyond ITER, structural and plasma-facing materials will be exposed to unprecedented …
beyond ITER, structural and plasma-facing materials will be exposed to unprecedented …
Hydrogen retention and affecting factors in rolled tungsten: Thermal desorption spectra and molecular dynamics simulations
H Chen, L Wang, F Peng, Q Xu, Y Xiong, S Zhao… - International Journal of …, 2023 - Elsevier
Hydrogen isotope retention of tungsten in nuclear fusion reactors is one of the hot research
issues all along. In this paper, tungsten samples in different rolled surfaces were polished by …
issues all along. In this paper, tungsten samples in different rolled surfaces were polished by …
Mechanisms of helium irradiation blistering and surface deformation in tungsten
Helium irradiation blistering in tungsten is of intense interest for plasma-facing materials
under fusion-relevant conditions. Previous studies have revealed that the surface blistering …
under fusion-relevant conditions. Previous studies have revealed that the surface blistering …
Growth of fiberform nanostructures on metal surfaces by helium plasma irradiation
Helium plasma irradiation to various metals leads to peculiar morphology changes as
forming fiberform nanostructures called fuzz when a certain set of conditions is satisfied. In …
forming fiberform nanostructures called fuzz when a certain set of conditions is satisfied. In …
Large-scale atomistic simulations of low-energy helium implantation into tungsten single crystals
Large-scale molecular dynamics simulations of post-implantation helium behavior in plasma-
facing tungsten single crystals reveal orientation-dependent depth profiles, surface evolution …
facing tungsten single crystals reveal orientation-dependent depth profiles, surface evolution …
On the origin of 'fuzz'formation in plasma-facing materials
Tungsten, the material used in the plasma-facing components (PFCs) of nuclear fusion
reactors, develops a fuzz-like surface morphology under typical reactor operating conditions …
reactors, develops a fuzz-like surface morphology under typical reactor operating conditions …
Data-driven material models for atomistic simulation
The central approximation made in classical molecular dynamics simulation of materials is
the interatomic potential used to calculate the forces on the atoms. Great effort and ingenuity …
the interatomic potential used to calculate the forces on the atoms. Great effort and ingenuity …
Challenges and opportunities of modeling plasma–surface interactions in tungsten using high-performance computing
BD Wirth, KD Hammond, SI Krasheninnikov… - Journal of Nuclear …, 2015 - Elsevier
The performance of plasma facing components (PFCs) is critical for ITER and future
magnetic fusion reactors. The ITER divertor will be tungsten, which is the primary candidate …
magnetic fusion reactors. The ITER divertor will be tungsten, which is the primary candidate …
Helium-induced morphology evolution in tungsten under thermal treatment
M Ialovega, E Bernard, MF Barthe, R Bisson… - Nuclear …, 2022 - iopscience.iop.org
Surface and near-surface morphology evolution of helium-irradiated tungsten due to thermal
cycling up to the ITER-relevant temperature of 1350 K was studied using electron …
cycling up to the ITER-relevant temperature of 1350 K was studied using electron …